N = int(input())
L = list(map(int, input().split()))
 
ans = 0
if(N >= 3):
  t = []
  for i in range(N):
    for j in range(i+1, N):
      for k in range(j+1, N):
        if((L[i] != L[j]) & (L[i] != L[k]) & (L[j] != L[k]) & (abs(L[j]-L[k]) < L[i]) & (L[i] < L[j]+L[k])): t.append((L[i], L[j], L[k]))
  ans = len(t)

print(ans) N = int(input()) N int(input()) int input() input L = list(map(int, input().split())) L list(map(int, input().split())) list map(int, input().split()) map int input().split() ().split () input split ans = 0 ans 0 if(N >= 3):
  t = []
  for i in range(N):
    for j in range(i+1, N):
      for k in range(j+1, N):
        if((L[i] != L[j]) & (L[i] != L[k]) & (L[j] != L[k]) & (abs(L[j]-L[k]) < L[i]) & (L[i] < L[j]+L[k])): t.append((L[i], L[j], L[k]))
  ans = len(t) N >= 3 N 3 t = [] t [] for i in range(N):
    for j in range(i+1, N):
      for k in range(j+1, N):
        if((L[i] != L[j]) & (L[i] != L[k]) & (L[j] != L[k]) & (abs(L[j]-L[k]) < L[i]) & (L[i] < L[j]+L[k])): t.append((L[i], L[j], L[k]))
   i range(N) range N for j in range(i+1, N):
      for k in range(j+1, N):
        if((L[i] != L[j]) & (L[i] != L[k]) & (L[j] != L[k]) & (abs(L[j]-L[k]) < L[i]) & (L[i] < L[j]+L[k])): t.append((L[i], L[j], L[k]))
   j range(i+1, N) range i+1 i 1 N for k in range(j+1, N):
        if((L[i] != L[j]) & (L[i] != L[k]) & (L[j] != L[k]) & (abs(L[j]-L[k]) < L[i]) & (L[i] < L[j]+L[k])): t.append((L[i], L[j], L[k]))
   k range(j+1, N) range j+1 j 1 N if((L[i] != L[j]) & (L[i] != L[k]) & (L[j] != L[k]) & (abs(L[j]-L[k]) < L[i]) & (L[i] < L[j]+L[k])): t.append((L[i], L[j], L[k]))
   (L[i] != L[j]) & (L[i] != L[k]) & (L[j] != L[k]) & (abs(L[j]-L[k]) < L[i]) & (L[i] < L[j]+L[k]) (L[i] != L[j]) & (L[i] != L[k]) & (L[j] != L[k]) & (abs(L[j]-L[k]) < L[i]) (L[i] != L[j]) & (L[i] != L[k]) & (L[j] != L[k]) (L[i] != L[j]) & (L[i] != L[k]) L[i] != L[j] L[i] L i L[j] L j L[i] != L[k] L[i] L i L[k] L k L[j] != L[k] L[j] L j L[k] L k abs(L[j]-L[k]) < L[i] abs(L[j]-L[k]) abs L[j]-L[k] L[j] L j L[k] L k L[i] L i L[i] < L[j]+L[k] L[i] L i L[j]+L[k] L[j] L j L[k] L k ans = len(t) ans len(t) len t print(ans) print ans L = list(map(int, input().split())) list(map(int, input().split())) L t = [] [] t ans = len(t) len(t) ans N = int(input()) int(input()) N ans = 0 0 ans
N = int(input())
L = list(map(int, input().split()))
 
ans = 0
if(N >= 3):
  t = []
  for i in range(N):
    for j in range(i+1, N):
      for k in range(j+1, N):
        if((L[i] != L[j]) & (L[i] != L[k]) & (L[j] != L[k]) & (abs(L[j]-L[k]) < L[i]) & (L[i] < L[j]+L[k])): t.append((L[i], L[j], L[k]))
  ans = len(t)

print(ans)